9888380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 22014720

約数和(自身を除く): 12126340

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 62, 82, 124, 155, 164, 205, 310, 389, 410, 620, 778, 820, 1271, 1556, 1945, 2542, 3890, 5084, 6355, 7780, 12059, 12710, 15949, 24118, 25420, 31898, 48236, 60295, 63796, 79745, 120590, 159490, 241180, 318980, 494419, 988838, 1977676, 2472095, 4944190, 9888380]

約数ペア:

[(1, 9888380), (2, 4944190), (4, 2472095), (5, 1977676), (10, 988838), (20, 494419), (31, 318980), (41, 241180), (62, 159490), (82, 120590), (124, 79745), (155, 63796), (164, 60295), (205, 48236), (310, 31898), (389, 25420), (410, 24118), (620, 15949), (778, 12710), (820, 12059), (1271, 7780), (1556, 6355), (1945, 5084), (2542, 3890)]